Number of n X n 0..1 arrays with each 1 horizontally, vertically or antidiagonally adjacent to 0, 2 or 4 neighboring 1's.
A296629
Number of n X n 0..1 arrays with each 1 horizontally, vertically or antidiagonally adjacent to 0, 2 or 4 neighboring 1's.
Terms
- a(0) =2a(1) =8a(2) =71a(3) =1444a(4) =67488a(5) =7121315a(6) =1700240351a(7) =918770773688
External references
- oeis: A296629